Permutation-padlock.



No.v 633,076. Patented Nov. 2s, |899.

c. sTunEn.

PERMUTATION PADLOCK.

(Application led July 21, 1899.)

(No Model.)

Tn: Monms FUN! Co.. momufuo., wnsnmuron n c UNITED STATES PATENT OEEICSE.

CONRAD STUDER, OF NEW YORK, N. Y.

PERM UTATION-PADLOCK.

srEcIFicATIoNforring pt of Letters 13a/cent No. 638,076, dated Novemrsef es, 1899.

Application iled July 21, 1899. Serial No. 724,612. (No model.)

To all whom t may concern:

Be it known that I, CONRAD STUDER, of the city, county, and State of New York, have invented certain new and useful Improvements in Combination-Locks, of which the following is a full, clear, and exact speciiication, reference beinghad to the accompanyingdrawings, wherein-- Figure 1 is an elevation and partly-sectional view of my improved combination-padlock. Fig. 2 is an elevation, and Fig. 3 a sectional View, of the rotary tumblers. Fig. 4 is an elevation ofthe bow and bolts of the lock. Fig. 5 is a perspective View of one of the component parts of the easing of the lock.

Similar letters and ligures of reference indicate corresponding parts in all views of the drawings.

My invention relates to locks; and it consists of the hereinaftcndescribed combination-padlock comprising a bow A, whose extended ends 2 are utilized as bolts ot' the lock, case B, a series of tumblers C, and the device for locking the tumblers to the case.

The bow may be made in any desired crossi section; but its extended ends 2, serving as bolts, must be circular and snugly fitted into the slotted rings 3. These ends 2 are provided with lugs 4, set therein in line with each other and in line with the axis of the bolts. There may be one, two, or more of such lugs set in each of the bolts, or they may be set in one bolt only, if so desired, the rule being that the more of these lugs there are provided the larger will be the scope of combination afforded.

Tumblers C are composed of tubes 5 and slotted rings 3, set in the tubes. Rings 3 are snugly iitted to admit bolts 2 and lugs 4, the latter passing through slots 6. On their outsides these rings 3 are provided with longitudinal ridges 7, corresponding to ridges 7 provided on the insides of tubes 5. Rings 3 are made, preferably, of spring-steel and slightly spread apart to secure their firm connection with tubes 5 when inserted therein. The tumblers are set in the casing B, and by turning them4 when the bolts are inserted therein lugs 4 are engaged by the lower edges of rings 3, and the bolts are thereby locked. The lock may consist of one or more sets of such tumblers, and correspondingly, also, the casing will consist of one or more parts (designated in the drawings by letters B B' B2) and of the plate B3, closing its bottom. Each of the parts B B B2 is, as shown in Fig. 5, in the shape of a T, the proj ectinghead parts 27 being provided with apertures 10, corresponding in size to bolts 2 and provided with grooves 11 to admit lugs 4 of the bolts.

The receded sides of the parts B, B', and B2 are concaved to correspond to the circular shape of tubes 5, whereas in the head parts 27 there are provided circular recesses 9, tted to receive the upper parts of rings 3, projecting from the tubes 5. Each part B B B2 accommodates one set of tumblers C. The parts are joined together, as shown in Fig. 1, the last one, B2, being closed by plate BS, and the whole body or casing of the lock united by screw-bolts 13, which are screwed in the plate B3 and bolted by nuts 14, recessed in part B. When desired, the ends of bolts 13 may be riveted in addition to being secured by nuts 14; but this is not necessary for the greater safety of the lock, because when the bolts are inserted and thetumblers turned the parts of the lockare held together by the bolts, and it would not be of any assistance to a burglar in an attempt to pick the lock to loosen or remove bolts 13, secur ing the parts of the casing together.

As shown in the drawings, there are plugs 16 set in the bar B3, which fit into the tubes 5 of the last section of tumbler C to hold them more securely in position.

Turnblers C are marked on their outer surfaces with lines l5 or other divisional indica- Ations,which may be designated by numerals or letters. Corresponding divisional marks 15a or pointers are provided on the head parts of the casing.

The position of rings 3 in tubes 5 may be changed, observing only that slots 6 correspond to one of the divisional marks on the surface of the tubes 5. In this manner any combination of letters, figures, or marks may be made, into which the tumblers must be set to bring their slots 6 in line with lugs 4 in order to permit the withdrawing of the bolts from the lock. It is seen from the construction of the lock that if the lock contains only one set 2 of tumblers both of them must be set correspondingly to permit the withdraw- IOO ' casing are put together.

ing of the bolts, and :if the lock is composed of more than one set of such tumblers all the tumblers must be in such position that slots 6 of the rings 3 are exactly in line with lugs 4 of the bolts.

In assembling the lock rst the parts of the Then rings 3 are set in tubes 5 in such position as required for a desired combination and the tumblers inserted in the casing. Finally plate B3 is set in position and nuts 14 screwed on bolts 13, securing the parts together. Then tumblers C are set in position as required by the combination, and bolts 2, forming part of bow A, are inserted therein.

To secure the tumblers in locked position, I provide my improved lock with the devices illustrated in Fig. 5 of the drawings. Tubes 5 are provided on their lower edges with recesses 17. These recesses are arranged not to coincide with slots 6 irrespectively of how rings 3 are set or changed. In these recesses engage lon gitudinally-movable pins 18, which are set in corresponding grooves 19, provided in parts B B B2 of the casing. The heads of these pins project into bore 20, and by means of springs 21, secured to them, these pins are normally held receded in the grooves 19, so that the tumblers may freely revolve. Spindle 22 runs through the parts of the casino, and eccentric cams 23 are secured to it in position to engage the heads of the pins. By turning spindle 22 cams 23 are brought to bear upon the heads of pins 1S. The points of these pins are driven into the recesses 17 of tumbler C, and thereby arrest their motion. It is then necessary to first turn spindle 22 so as to withdraw cams 23 from their engagement with the heads of the pins 18 before the tumblers can be turned. This is done by.

means of a key fitted to engage with the ends of the spindle. For greater safety of the lock essere the terminus of the spindle 22 may be conii bined with some of the known safety locking arrangements, like the Yale lock, or some other safety device may be used whose construction is not necessary to describe here, as it forms no part of my invention.

I claim as my'invention- 1. A lock consisting of abow having its ends elongated and formed into bolts, a series of lugs set in the elongated ends of the bow, a frame having apertures adapted to receive the elongated ends of the bow, rotary tumblers, set in the frame in line with the apertures and provided with recesses in their peripheries, pins adapted to engage in those recesses set movably in the frame and means for operating the pins to move them in and out of engagement with the tumblers.

2. The combination with a padlock comprising a bow having its ends elongated and formed into bolts, a series of lugs set in the elongated ends of the bow, a frame having apertures adapted to receive the elongated ends of the bow, rotary tumblers, consisting of tubes and slotted rings secured therein, set in the frame in line with the apertures, and provided with recesses, of a device for locking the tumblers relatively to the frame and to the bolts of the lock, comprising longitudinally-movable pins set in the frame of the lock in position to engage with the recesses provided in the tumblers, springs set to draw the pins away from the recesses, a spindle set in the frame of the lock, eccentric cams set on the spindle in position to yengage with the heads of the pins and means for turning the spindle.

CONRAD STUDER Witnesses:

JOHN A. PAULsoN, E. C. NIELsoN. 

